AlexanderVasiljev commented on a change in pull request #2036:
URL: https://github.com/apache/incubator-nuttx/pull/2036#discussion_r508281290
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File path: drivers/serial/serial.c
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@@ -1761,7 +1771,7 @@ void uart_connected(FAR uart_dev_t *dev, bool connected)
void uart_reset_sem(FAR uart_dev_t *dev)
{
nxsem_reset(&dev->xmitsem, 0);
- nxsem_reset(&dev->recvsem, 0);
+ nxsem_reset(&dev->recvsem, 1);
Review comment:
Yes, it will wake up immediately with an empty buffer. But it will check
the condition
if (rxbuf->head == rxbuf->tail)
and take the semaphore again.
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